Weight machines are generally targeted more toward beginners, or those recovering from injuries, but they can be useful for anyone.

When you are swimming the breaststroke, water provides resistance — but it's a level of resistance you cannot change. You can't make water thicker or thinner, so once your muscles adapt to the breaststroke, the improvement you are likely to see in the strength of your muscles is limited.

Neck tension is a common complaint among adults of all ages; though a stiff neck can result from exercise, overuse or simply sleeping in the wrong position, many people have a tendency to carry stress in their neck and shoulders, leaving them with a tense neck on an almost daily basis.

Wall pushups are an easier version of the standard pushup and work to improve muscular strength and endurance in the chest, shoulders and triceps muscles. Because pushups are a body weight exercise, there are many ways to perform them to make them easier or more difficult depending on your fitness level.

If your arms keep waving long after you've stopped, you'll do almost anything to squelch their enthusiasm. The weight-room floor is a good place to start to tone the muscles of the arm, but dumbbells alone won't melt the fat that's keep you from going sleeveless.

Clicking of the elbow while flexing or performing biceps curls indicates an intra-articular or inside the joint damage, according to a 2000 “American Family Physician” article. Clicking may be accompanied with pain, swelling and joint stiffness.

An injury or pain in your wrists can severely interfere with your training schedule; however, several exercises allow you to train your upper body with minimum or no involvement of your wrists. Incorporate these movements into your routine to continue training until your wrists are better.

When you think of an athlete, more than likely a well-developed muscular image comes to mind. But, it may surprise you to hear that an athletic body is not necessarily what exercise and fitness experts have in mind when they speak of a fit body.

Despite being one of most difficult exercises to perform, pullups are also one of most effective exercises at building back and upper strength.

High school football is often the level where student athletes first seriously use weightlifting to improve on-field performance.

Neck and muscle pain can sometimes be felt after exercise even when you didn’t feel any pain during exercise. Most of the time, this pain can be explained by what occurred during exercise; however, this is not always the case.

No set formula can assess how much weight you can lose before your body starts to shut down, but there are ways to tell if you are headed in that direction. Danger signs crop up gradually, as even the most nutritionally deprived and underweight body will not shut down all at once.